1 files changed, 3 insertions, 3 deletions
diff --git a/src/num.h b/src/num.h
index 7bb9c5be8c..49f2dd791d 100644
--- a/src/num.h
+++ b/src/num.h
@@ -4,8 +4,8 @@
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
 
-#ifndef _SECP256K1_NUM_
-#define _SECP256K1_NUM_
+#ifndef SECP256K1_NUM_H
+#define SECP256K1_NUM_H
 
 #ifndef USE_NUM_NONE
 
@@ -71,4 +71,4 @@ static void secp256k1_num_negate(secp256k1_num *r);
 
 #endif
 
-#endif
+#endif /* SECP256K1_NUM_H */